In a statement early Monday, police said both suspects face preliminary charges of capital murder and aggravated assault with a deadly weapon.
The robbery happened at a Kay Jewelers store inside Rolling Oaks Mall, reports CBS San Antonio affiliate KENS-TV .
“What we have here is a robbery gone really, really bad,” Police Chief William McManus said, adding that the shooting was “absolutely senseless.”
KENS explains that, as they were escaping, the two suspects ran into two people outside who tried to intervene.
One of the good Samaritans was shot and killed, McManus said.
A woman with her child reacts after San Antonio police helped her and other shoppers exit the Rolling Oaks Mall, Sunday, Jan. 22, 2017
The second had a concealed carry license and shot the suspect who had fired the gun.
That suspect was transported to a hospital and reported in critical condition.
The second suspect ran back into the mall and started shooting as he ran, KENS says.
Authorities say two other people were shot and two women suffered non-shooting injuries.
San Antonio Fire Chief Charles Hood told KENS one of the other people complained of chest pains, while another experienced labor pains.
The stores inside the mall were on lockdown following the shootings, KENS said, with officers going from store to store to securely escort customers out of the mall.
Police with K9s checked throughout the mall Sunday evening to make sure it was clear of any suspects.
San Antonio police posted a video on Facebook of the second suspect in custody, and said in the post that he’d crashed a stolen car and fled but was captured by police in nearby Converse.
Two weapons were recovered, San Antonio police said.
